package com.tg.demo.conf;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * @author Rubble
 * @date 2020/7/31
 */
@Slf4j
@Configuration
public class AsyncTaskConfiguration {

    @Bean
    public Executor poolTaskExecutor() {

        log.info("start asyncServiceExecutor");
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        //配置核心线程数
        executor.setCorePoolSize(4);
        //配置最大线程数
        executor.setMaxPoolSize(8);
        //配置队列大小
        executor.setQueueCapacity(200);
        //配置线程池中的线程的名称前缀
        executor.setThreadNamePrefix("async-service-");
        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        //执行初始化
        executor.initialize();

        return executor;

    }
}
